* Add an explicit `-[FlutterViewController init]` implementation

`-[FlutterViewController init]` currently works because it inherits
the `-[UIViewController init]` convenience initializer that invokes
the `-[UIViewController initWithNibName:bundle:]` designated
initializer that `FlutterViewController` overrides.

However, this doesn't seem to be explicitly documented, so it's a bit
confusing (or at least non-obvious), and it seems potentially
brittle.  Add an explicit implementation of `-[FlutterViewController
init]` instead.

* b04def9 [VM interpreter] Save previous argdesc_ and pp_ on reentry, restore on exit.
92ae73b Fork the remaining subclasses of AbstractAnalysisClass
884536d [vm/kernel/bytecode] Fix bytecode generation for async closures
ae00170 [vm/kernel/bytecode] Do not call getter for a static field initialized with double literal
87f753d Replace some declarations of element with declaredElement
2be2cf2 Bump analyzer_cli protobuf dep
206f955 [vm/compiler] Non-speculative ARM64 long division/remainder.
4bb3fb6 Don't rewrite error Severity for special cases of front-end testing.
d618970 Issue 33506. Rewrite MethodInvocation into InstanceCreationExpression.
26e087e Don't save Tokens in Judgments
4c75b49 Clear Token in field builder after use
ea0468d Fork more server tests to run under CFE
841f627 Clean up some hints from the analyzer code base
c5f933f [vm/lib] String._identityHashCode should be the same as String.get:hashCode
4fa139b [vm/compiler] Rework how logical expressions are compiled to IL.
9bb39cc [infra] Update checked in SDKs to 2.0.0-dev.69.5
2580bf8 Fix invalid assert that slipped by in ac8fdb5
1c2043e Update service test more to not be different in sync async mode
ac8fdb5 Add :controller_stream and call _asyncStarListenHelper
2e98da6 Call _asyncStarMoveNextHelper in kernel
cb5513f Make a single clear CHANGELOG entry for all 2.0.0 changes.
d3df394 Add -O flag and documentation.
3f1bb85 [vm/kernel/bytecode] Do not generate InstantiateType for instantiated generic function types
c5ac5c0 [vm/kernel/bytecode] Fix serialization of closures with type arguments
ff0327b [vm] Streamline passing of ICData through compilation pipeline
0127669 Status file two flaky pkg bot tests.
6a6e7ab Clean up some warnings in the server code base
e578b60 Bump the analysis driver cache seed.
f169ebf Fork several server tests to run under CFE
b1c9b67 Add initial content for the analyzer --use-cfe builders.
373ed6b Create a LineInfo when resynthesizing a CompilationUnitElement
2a23bc2 Update named configurations on builders, turn off checking temporarily.
32851e1 Add support for running some non-integration tests in server using the CFE
0fd93a5 Test.dart exits with non-zero exit code if named configuration disagrees with flags.
804fc2a [VM runtime] Consider partial instantiation when printing closures (fixes #34034). Add regression test.
c3b7f29 Change a pair of negative tests to multitests
f10b400 Code to load a named configuration and check it against the existing options.
695476f Status file after 03df8b1
7413644 Change builder names from -ff- to -firefox-
0c18758 Added return-void-2-dynamic to whitelist of generalized-void.md
6920d6b Added specification of generated nSM forwarders for private methods
03df8b1 Change a few language_2 tests to comply with reality
cf77a3b [Test.dart] Use Compiler, Runtime, etc. classes from pkg:smith.
55880df Add support in the new API for CFE
4b07df2 Store invalid deferred types used in bodies.
89cfa2e Update package:test_reflective_loader.

* Update DEPS

* Update travis/licenses_golden/licenses_third_party

Auto-roller completed checks. Merging.

Instead, send them with the new unknown PointerDeviceKind.

We hit this when running `adb shell input tap` in tests which sends events with
an unknown tool type.

This also fills in a missing conversion for TOOL_TYPE_ERASER.

Auto-roller completed checks. Merging.

* Flush all embedded Android view on hot restart.

Adds an OnEngineRestarted method to PlatformView, this is currently only
implemented for Android where we need to use it for embedded views.

* review comments followup

* rename to OnPreEngineRestart, call before Clone

Auto-roller completed checks. Merging.

Auto-roller completed checks. Merging.

If we want to avoid the bleeding edge artifact (flutter/flutter#18057 (comment)) using saveLayer, we have to call drawPaint instead of drawPath as anti-aliased drawPath will always have such artifacts.

This is discovered when I try to add golden tests for such bleeding artifacts using our new Clip enum. Here's the updated golden files: flutter/goldens@cb1fa8a?short_path=57b30ce#diff-57b30cea9b10b7ca689009854e12d70e

Auto-roller completed checks. Merging.

Auto-roller completed checks. Merging.